公开(公告)号：US20160052826A1

公开(公告)日：2016-02-25

申请号：US14780235

申请日：2014-03-11

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Masato YAMAZAKI ,  Takayuki MATSUOKA ,  Kazuaki KITAMURA ,  Hisashi KOZUKA ,  Hideto YAMADA ,  Toshiaki KURAHASHI ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI ,  Takashi KASASHIMA

IPC: C04B35/495 ,  H01L41/047 ,  H01L41/113 ,  H01L41/09 ,  H01L41/187 ,  H01L41/08

CPC classification number: C04B35/495 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3293 ,  C04B2235/3294 ,  C04B2235/3418 ,  C04B2235/602 ,  C04B2235/768 ,  C04B2235/80 ,  G01L23/222 ,  H01L41/047 ,  H01L41/08 ,  H01L41/09 ,  H01L41/1132 ,  H01L41/187 ,  H01L41/1873 ,  H01L41/43 ,  H03H9/02031

Abstract: A lead-free piezoelectric ceramic composition includes a first crystal phase made of an alkali niobate/tantalate type perovskite oxide having piezoelectric properties, and a second crystal phase made of an M-Ti—O spinel compound (where the element M is a monovalent to quadrivalent element).

Abstract translation: 无铅压电陶瓷组合物包括由具有压电性质的铌酸盐/钽酸钙型钙钛矿氧化物制成的第一结晶相和由M-Ti-O尖晶石化合物（其中元素M为单价至 四价元素）。

公开(公告)号：US20170141293A1

公开(公告)日：2017-05-18

申请号：US15129943

申请日：2015-03-05

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hisashi KOZUKA ,  Hideto YAMADA ,  Takayuki MATSUOKA ,  Kazuaki KITAMURA ,  Masato YAMAZAKI ,  Toshiaki KURAHASHI ,  Takashi KASASHIMA ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC: H01L41/187 ,  C04B35/64 ,  C04B35/495 ,  H01L41/43 ,  H01L41/047

CPC classification number: H01L41/1873 ,  C04B35/495 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3255 ,  C04B2235/3262 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3277 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/604 ,  C04B2235/768 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/96 ,  H01L41/047 ,  H01L41/43

Abstract: A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase is 0.40 direction with the main phase represented as a pseudo-cubic crystal system. Also, the area ratio of a crystal phase reflecting the second spots in the main phase is 33% or less, and the maximum grain size of crystals reflecting the second spots in the main phase is 25 nm or less.

公开(公告)号：US20170141292A1

公开(公告)日：2017-05-18

申请号：US15129877

申请日：2015-03-05

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hisashi KOZUKA ,  Hideto YAMADA ,  Takayuki MATSUOKA ,  Kazuaki KITAMURA ,  Masato YAMAZAKI ,  Toshiaki KURAHASHI ,  Takashi KASASHIMA ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC: H01L41/187 ,  C04B35/64 ,  C04B35/495 ,  H01L41/047 ,  H01L41/43

CPC classification number: H01L41/1873 ,  C04B35/495 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3244 ,  C04B2235/3255 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3277 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/604 ,  C04B2235/763 ,  C04B2235/768 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/96 ,  H01L41/047 ,  H01L41/43

Abstract: A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide subphase. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase assumes a value in a range represented by 0.40 direction with the main phase represented as a pseudo-cubic crystal system.

公开(公告)号：US20180106754A1

公开(公告)日：2018-04-19

申请号：US15572853

申请日：2016-03-28

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hisashi KOZUKA ,  Mina SATO ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC: G01N27/407 ,  C01F17/00

CPC classification number: G01N27/4076 ,  C01F17/0018 ,  C04B35/01 ,  C04B35/2608 ,  C04B2235/3227 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/72 ,  C04B2235/725 ,  C04B2235/768 ,  C04B2235/80 ,  G01N27/4075 ,  H01B1/08 ,  H01L35/22

Abstract: A gas sensor, characterized by having an electrode formed of a conductive oxide sintered body which contains a primary phase formed of a perovskite oxide containing at least La, Fe, and Ni; and a secondary phase formed of an La4M3O10 phase or an La3M2O7 phase (M=Co, Fe, Ni), wherein the conductive oxide sintered body has a conductivity of 300 S/cm or higher at room temperature.

公开(公告)号：US20180045673A1

公开(公告)日：2018-02-15

申请号：US15670467

申请日：2017-08-07

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Mina SATO ,  Yoshinobu HIROSE ,  Akira SEIKE ,  Hisashi KOZUKA ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC: G01N27/407 ,  C01G53/00 ,  H05K1/09 ,  G01N27/30

CPC classification number: G01N27/4073 ,  C01G53/70 ,  C01P2002/34 ,  C01P2002/50 ,  C01P2006/40 ,  G01N27/301 ,  G01N27/4076 ,  H05K1/09 ,  H05K1/092 ,  H05K3/1291 ,  H05K2201/0326

Abstract: A gas sensor including a conductive oxide sintered body, the sintered body including a crystal phase having a perovskite-type oxide crystal structure represented by a compositional formula: REaCubFecNidOx wherein RE represents a rare earth element, wherein the following conditions: a+b+c+d=1 and 1.25≦x≦1.75 are satisfied, and wherein a, b, c, and d satisfy the following conditions: 0.375≦a≦0.524; 0.050

公开(公告)号：US20180330843A1

公开(公告)日：2018-11-15

申请号：US15528991

申请日：2015-12-07

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hisashi KOZUKA ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC: H01B1/08 ,  C04B35/468 ,  C04B35/49 ,  C04B35/50 ,  G01N27/407 ,  G01N29/24

CPC classification number: H01B1/08 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/50 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/604 ,  C04B2235/762 ,  G01N27/4073 ,  G01N29/022 ,  G01N29/2437 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0426

Abstract: An electrically conductive oxide sintered compact according to one embodiment of the present invention includes a crystal phase that has a perovskite oxide crystal structure represented by the composition formula: REaCobCucNidOx where RE is a rare-earth element; a+b+c+d=1; and 1.25≤x≤1.75, wherein the values of a, b, c and d respectively satisfy the following conditions: 0.474≤a≤0.512; 0.050≤b≤0.350; 0≤c≤0.250; and 0.050≤d≤0.350.

公开(公告)号：US20160334361A1

公开(公告)日：2016-11-17

申请号：US15152888

申请日：2016-05-12

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hisashi KOZUKA ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC: G01N27/407 ,  G01N27/30 ,  C30B29/22

CPC classification number: C30B29/22 ,  C04B35/50 ,  C04B35/62625 ,  C04B35/62655 ,  C04B35/62675 ,  C04B35/62695 ,  C04B35/632 ,  C04B2235/3227 ,  C04B2235/327 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/604 ,  C04B2235/72 ,  C04B2235/768 ,  C04B2235/79 ,  G01N27/125

Abstract: A sintered electrically conductive oxide for an oxygen sensor electrode includes a crystal phase formed of a perovskite-type electrically conductive oxide containing at least La, Fe and Ni. The oxide has an absolute value of thermoelectromotive force at 770° C. of 21.0 μV/K or less.

Abstract translation: 用于氧传感器电极的烧结导电氧化物包括由至少含有La，Fe和Ni的钙钛矿型导电氧化物形成的结晶相。 该氧化物在770℃具有21.0μV/ K以下的热电动势的绝对值。

公开(公告)号：US20150295162A1

公开(公告)日：2015-10-15

申请号：US14682631

申请日：2015-04-09

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Masato YAMAZAKI ,  Takayuki MATSUOKA ,  Yoshiteru HONDA ,  Kazuaki KITAMURA ,  Hisashi KOZUKA ,  Toshiaki KURAHASHI ,  Yasuyuki OKIMURA ,  Hideto YAMADA ,  Kazushige OHBAYASHI

IPC: H01L41/187 ,  H01L41/43

CPC classification number: H01L41/1873 ,  C04B35/495 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3284 ,  C04B2235/602 ,  C04B2235/768 ,  C04B2235/80 ,  H01L41/43

Abstract: A lead-free piezo-electric porcelain composition which contains a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A2B6O13-based compound (where the element A is a monovalent element and the element B is one or more divalent to hexavalent elements). The sub-phase fills voids present in the main phase.

Abstract translation: 一种无铅压电陶瓷组合物，其含有具有空隙的主相，并且由具有压电特性的铌酸盐/钽酸钙类钙钛矿氧化物构成的第一结晶相形成; 以及含有由A2B6O13系化合物（元素A为一价元素，元素B为一价以上的2价〜6价元素）构成的第2结晶相的副相。 子相填充主相中存在的空隙。